Heart Cycle quiz Flashcards by Myles Saint Louis

Q

3 Phases of the Cardiac Cycle

A

Ventricular Filling
Ventricular Contraction
Early Diastole

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Q

Ventricular Filling

A

A

AV Valves open, Heart relaxed

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Q

Atrial Contraction

A

B

Blood left in atriums forced over into ventricles

SA Node needs to fire to AV Node

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Q

Isovolumetric Contraction

A

C

AV + Semilunar Valve close, Pressure is up

AV -> bundle of his -> L + R Bundle Braches

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Q

Ventricular Ejection

A

D

Semilunar open, Blood Leaves

L + R Bundle Branches -> Purkinje Fibers

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Q

Isovolumetric Relaxation

A

Av + Semilunar Closed Pressure Drops

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